From a1d7cbb984f2a6c2ea976daa8914a2c9845ee21c Mon Sep 17 00:00:00 2001
From: tassaron
Date: Tue, 15 Aug 2017 22:20:25 -0400
Subject: undoable edits for normal component settings; TODO: merge small edits

---
 src/toolkit/common.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'src/toolkit/common.py')

diff --git a/src/toolkit/common.py b/src/toolkit/common.py
index eba57d9..51ad023 100644
--- a/src/toolkit/common.py
+++ b/src/toolkit/common.py
@@ -9,6 +9,18 @@ import subprocess
 from collections import OrderedDict
 
 
+class blockSignals:
+    '''A context manager to temporarily block a Qt widget from updating'''
+    def __init__(self, widget):
+        self.widget = widget
+
+    def __enter__(self):
+        self.widget.blockSignals(True)
+
+    def __exit__(self, *args):
+        self.widget.blockSignals(False)
+
+
 def badName(name):
     '''Returns whether a name contains non-alphanumeric chars'''
     return any([letter in string.punctuation for letter in name])
-- 
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